i don't understand why they can't make the voyager the best one since they have more room to work with? rushed to retail?

Not at all. The big flaws with the voyager are mostly for the sake of the alt mode, such as kibble on the back and oddly placed shoulder pads. The Cyberverse doesn't have this problem because it just lets it's vehicle mode look like garbage for the sake of an amazing robot mode.

Conversely, commanders have been sparse around my area. I've only seen any of them once... and while there were a few Primes, there was only each of Megatron, Starscream and Bulkhead, which fortunately was good enough for me.

The alt mode is definitely not the strong point of this figure, it's more of a what passes for an alt mode than a defined alt mode, but the robot form is superb.

Seems poor Megs has suffered from ambiguous alt modes recently, using "alien vehicle" as an excuse for whatever they can get the parts to fold into.

There is also the non-DVD versions of these hitting in April, so I'm pretty confident that nobody will have a problem finding any of the first four within a month or two.

Oh, and Megs is awesome. I was originally going to skip him because I'm just not that keen on his alt mode (the design in general) but I'm glad I grabbed one. Bot mode looks like a non-transforming action figure.